| Autor: |
Furuya, D., Oda, M., Chen, Z., Li, L., Murakawa, H., Sakai, H., Nitani, H., Niwa, Y., Abe, H., Uetsuka, H., Karube, T., Inui, H., Hanasaki, N. |
| Zdroj: |
Applied Physics Letters; 11/11/2024, Vol. 125 Issue 20, p1-5, 5p |
| Abstrakt: |
High-/medium-entropy alloys (H/MEAs) have attracted attention for their excellent mechanical properties. According to first-principles calculations, the atomic displacements from their lattice points are element-dependent and correlated with the yield strength of H/MEAs. To investigate experimentally the element dependence of the local structure, we measured the extended x-ray absorption fine structure in seven kinds of face-centered cubic H/MEAs consisting of 3d transition metal elements. Our experimental results indicate that the local disorder around chromium (Cr) is larger than that around other elements, which is a common feature in all the measured fcc H/MEAs, aligning with prior theoretical studies indicating larger displacements of Cr in comparison to other elements. We discuss the mechanism underlying the local structural disorder induced by the constituent element Cr. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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